HUPITOYO, Hupitoyo.
 Faktor Biologi dan  Sesatan Hitung Taksiran Persalinan.
<strong>Jurnal Informasi Kesehatan Indonesia (JIKI)</strong>, [S.l.], v. 3, n. 2, p. 120-124, jan. 2018.
ISSN 2615-5516.
Available at: &lt;<a href="https://ojs.poltekkes-malang.ac.id/index.php/JIKI/article/view/139" target="_new">https://ojs.poltekkes-malang.ac.id/index.php/JIKI/article/view/139</a>&gt;. Date accessed: 05 feb. 2025.